Chronos Vision eye tracking devices are used in e.g. neuroscience, ophthalmology, refractive surgery or clinical research. The classic Chronos Eye Tracker was deployed on the International Space Station (ISS) in early 2004 and is in continuous use for the study of eye and head coordination during long-term stays in the weightlessness of spaceflight.

Ergoneers Dikablis, Soft- and hardwaresuite D-Lab & Dikablis for planning, performing and analyzing eye-tracking and behavioral experiments; fully automated gaze-data analysis in any environment without any restrictions in head and body movement for a motion range of 500m with Dikablis Wireless eye-tracking system.

Eye-Com wearable eye tracking and head tracking for clinical and human factors research.

Gazepoint GP3: low-cost, portable, USB powered desktop eye tracker for academic and market research, gaming and other common every day applications. Utilizes the Open standard API. Priced at US$485.00 and already shipping

ILAB, eye movement analysis software, works with a number of common eye trackers by ASL, ISCAN, and SMI, reads also CORTEX files

Open source gaze tracking and freeware eye tracking

This list contains low-cost, free and open source eye tracking systems and research prototypes, and information that should help in building your own eye tracker. Some of them are targeted at people with disabilities (eye-control systems), some for more general eye tracking and research.

EyeWriter, low-cost eye-tracking apparatus & custom open-source software that allows graffiti writers and artists with paralysis to draw using only their eyes.

ITU Gaze Tracker, works with a webcam or videocamera with nightvision and infrared illumination.

myEye, eye-tracking software to allow people with severe motor disabilities to use gaze as an input device for interacting with a computer. Beta version of the prototype software available for download.

openEyes, open-source open-hardware toolkit for low-cost real-time eye tracking See also the Windows version by Joel Clemens.

Gazepoint GP3: low-cost, portable, USB powered desktop eye tracker for academic and market research, gaming and other common every day applications. Utilizes the Open standard API. Priced at US$485.00 and already shipping